evilscan

Massive ip/port scanner

Features

• individual IP or IP range scan
• individual port, ports list, or ports range
• banner grabbing (not fully implemented, works with native verbose ports only)
• IAC negotiation for telnet
• reverse dns
• geolocation information
• stdout or json output
• optional progress details (event based)

Changelog

v1.7.5 – 2019/01/23

• switch to MIT licence

v1.7.4 – 2019/01/23

• fix #57

v1.7.3 – 2019/01/23

• maintenance: update npm packages
• fix geoip test
• ci tests should accept nodejs v10 and v11

v1.7.2 – 2019/01/23 (broken tests, see 1.7.3)

• don’t destroy a non-existing socket, fix #58

Install

npm install -g evilscan

Use

• in your code, using events only

  var evilscan = require('evilscan');
  
  var options = {
      target:'127.0.0.1',
      port:'21-23',
      status:'TROU', // Timeout, Refused, Open, Unreachable
      banner:true
  };
  
  var scanner = new evilscan(options);
  
  scanner.on('result',function(data) {
      // fired when item is matching options
      console.log(data);
  });
  
  scanner.on('error',function(err) {
      throw new Error(data.toString());
  });
  
  scanner.on('done',function() {
      // finished !
  });
  
  scanner.run();

   

   

• in your code, using callback and events

  var evilscan = require('evilscan');
  
  var options = {
      target:'127.0.0.1',
      port:'21-23',
      status:'TROU', // Timeout, Refused, Open, Unreachable
      banner:true
  };
  
  new evilscan(options, (err, scan) {
  
      if (err) {
          console.log(err);
          return;
      }
      
      scan.on('result',function(data) {
          // fired when item is matching options
          console.log(data);
      });
  
      scan.on('error',function(err) {
          throw new Error(data.toString());
      });
  
      scan.on('done',function() {
          // finished !
      });
  
      scan.run();
  });

   

   

• command line

  evilscan <fqdn|ipv4|cidr> [options]
  
   --port          port(s) you want to scan, examples:
                    --port=80
                    --port=21,22
                    --port=21,22,23,5900-5902
  
    --reverse       display DNS reverse lookup
  
    --reversevalid  only display results having a valid reverse dns, except if
                    ports specified
  
    --geo           display geoip (free maxmind)
  
    --banner        display banner
  
    --bannerlen     set banner length grabing
                    default 512
  
    --bannerraw     display raw banner (as a JSON Buffer)
  
    --progress      display progress indicator each seconds
  
    --status        ports status wanted in results (example --status=OT)
                    T(timeout)
                    R(refused)
                    O(open, default)
                    U(unreachable)
  
    --scan          scan method
                    tcpconnect (full connect, default)
                    tcpsyn (half opened, not yet implemented)
                    udp (not yet implemented)
  
    --concurrency   max number of simultaneous socket opened
                    default 500
  
    --timeout       maximum number of milliseconds before closing the connection
                    default 2000
  
    --display       display result format (json,xml,console)
                    default console
  
    --json          shortcut for --display=json
  
    --xml           shortcut for --display=xml
  
    --console       shortcut for --display=console
  
    --help          display help
  
    --about         display about
  
    --version       display version number

   

   

Tips:

Concurrency and fast scan

By default, concurrency is 100. Which is slow when you are scanning large ip range or large port range. You can pass a bigger value using –concurrency option. 1000 is fast by example. On some Linux, only 1024 opened sockets are allowed in the same time. To break this limit, you have to update ulimit parameter of your Linux first :

ulimit -u unlimited

In all cases, due to #25, you will not be able to scan more than 16580355 ipv4 addresses at the moment.

Pause/unpause

You can pause/unpause a running scan by sending a SIGUSR2 signal. The first time it will pause the process, the second time it will unpause it.

kill -SIGUSR2 19859 # where 19859 is the pid of nodejs process running evilscan

Copyright (c) 2019 eviltik

Source: https://github.com/eviltik/